Overliming Effects on Xylitol Production from Sago Trunk Hydrolysate
|
|
- Cameron Tyler
- 6 years ago
- Views:
Transcription
1 Pertanika J. Sci. & Technol. 19 (2): (2011) ISSN: Universiti Putra Malaysia Press Overliming Effects on Xylitol Production from Sago Trunk Hydrolysate Mohamad, N.L. 1, Mustapa Kamal, S.M. 1* and Abdullah, A.G.L. 2 1 Department of Process and Food Engineering, 2 Department of Chemical and Environment Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM, Serdang, Selangor, Malaysia * siti@eng.upm.edu.my ABSTRACT Xylitol can be obtained from lignocellulosic materials containing xylose. However, the fraction of lignocellulose converted through dilute acid hydrolysis contains compounds that inhibit the fermenting micro-organisms. These inhibitors can be removed from the hydrolysate by detoxification method, prior to fermentation. This study describes effectiveness of overliming process to reduce the toxicity of hydrolysates generated from pre-treatment of sago trunk for xylitol production. The overliming ph 9 and 10 was studied and the results showed that ph 9 was showed 20% of sugar loss, which is low compared to ph 10. Candida tropicalis strain was used to evaluate the fermentability of overlimed sago trunk hydrolysate at ph 9 and non-overlimed hydrolysate medium. Meanwhile, Xylitol accumulation and productivity in the overlimed medium was found to be higher than the non-treated medium. The maximum production of xylitol was increased up to 74% and converted within 76 h. The results obtained improved the fermentation process when compared with the nontreated medium. Keywords: Overliming, sago trunk, dilute acid hydrolysis, xylose, xylitol INTRODUCTION Sago trunk is an agricultural waste produced from the production of sago starch. The sago palm waste is the cheapest biodegradable and most readily available of all renewable natural sources existing in Malaysia (Pushpamalar et al., 2006). The bark of the trunk is normally used as walls, ceiling and fences; however, it was not fully utilize for higher value products as fuels and chemicals (Rahman, 2009). The presence of hemicellulose of sago trunk waste (20-30%) can be used as a potential renewable carbon source which contains xylose as the intermediate for the production of xylitol, a five carbon sugar alcohol with high sweetening power and valuable anti-cariogenic properties (Parajo et al., 1998). Xylitol production through dilute acid hydrolysis was hindered by toxic compounds normally presents in hemicellulose hydrolysates (Mussatto et al., 2005). These compounds will inhibit the microbial growth and lead to the decreasing of product formation in the fermentation medium. In his paper, Mussatto discussed on types of inhibitors derived from dilute acid hydrolysates. Four groups of toxic compounds derived; these were (1) sugar degradation products, (2) lignin degradation products, (3) compounds derived from lignocellulose structure, and (4) heavy metal ions (Mussatto & Roberto, 2004). Furfural and hydroxymetylfurfural were toxic compounds derived from sugar degradation products. Mussatto et al. (2005) observed that furfural concentrations lower than 0.5 g Received: 15 January 2011 Accepted: 28 March 2011 * Corresponding Author
2 Mohamad, N.L., Mustapa Kamal, S.M. and Abdullah, A.G.L L -1 had a positive effect on cell growth but if the concentrations were increased to 2 g L -1, it would inhibit the cell growth almost completely. Meanwhile, a variety of procedures have been employed for removing inhibitory compounds from hydrolysates for their inhibitory action in the fermentation (Cruz et al., 1999). Physicochemical procedures, neutralization and overliming (Roberto et al., 1991), adsorption in activated charcoal (Dominguez et al. 1997), extraction with organic solvents (Parajo et al. 1996) have been used for this purpose. According to Roberto et al. (1991), overliming methods was found to be low cost treatment and gives good results. This author obtained a partial removal of phenolic compound by adjusting ph to 10 with Ca(OH) 2 and then to 6.5 with H 2 SO 4. The detoxifying effect of overliming is due to both the precipitation of toxic components and to the instability of some inhibitors at high ph (Palmqist & Hagerdal, 2000). Palmqvist et al. (2000) observed the pre-adjustment to ph 10 with NaOH and CaOH, which were reported to decrease the concentration of Hibbert s ketones in a dilute acid hydrolysate of spruce from 203 to 158 (22%) decrease and to the concentration of both furfural and HMF by 20%. The main purpose of this work was to use sago trunk hemicellulose hydrolysate as a feedstock for microbial production of xylitol. The overliming method was used to monitor the effects of growth, xylitol accumulations and to confirm the suitability of overliming hydrolysates for making culture media that could easily be fermentable with Candida tropicalis. MATERIALS AND METHODS Raw Materials Sago trunks were obtained from local plantations, dried to 7% moisture content on oven dry basis, and ground to the particle size less than 1 mm, homogenized, air-dried, stored, and used for the experiments. Dilute-acid Hydrolysates Sago trunk ground chips were hydrolyzed by 6% H 2 SO 4 at 121 C for 45 minutes. The slurry was filtered through vacuum filtration to separate the solid containing cellulose and lignin with the liquid portion which primarily contained hemicellulose. The hydrolyzate contains g L -1 xylose, g L -1 glucose, 0.5 g L -1 furfural, 2.75 g L -1 acetic acid, and 3.2 g L -1 total phenolic compound. The ph of the initial hydrolyzate was Overliming Treatment The overliming treatment was chosen to be a detoxification method by increasing the ph of hydrolysates to 9 and 10 by addition of Ca(OH) 2. The hydrolysate was placed on the stirrer plate and heated to 50 C. Ca(OH) 2 was added gradually and mixed by using stirring bar until reach the target ph. The hydrolysate was then maintained at 50 C for 30 minutes (Mohagheghi et al., 2006). The mixture of hydrolysate and Ca(OH) 2 was vacuum filtered and the recovered solids (CaSO 4 ) were removed. The overlimed filtrate ph was adjusted to 6.5 for further analysis. 416 Pertanika J. Sci. & Technol. Vol. 19 (2) 2011
3 Overliming Effects on Xylitol Production from Sago Trunk Hydrolysate Microorganism The yeast Candida tropicalis was obtained from the Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, stored at 4 C on sabourod dextrose agar plates and sub-cultured twice a month. Inoculum Preparation The pre-culture medium consisted of (gl -1 ) D-xylose, 10; yeast extract, 60; KH 2 PO 4, 15; (NH 4 ) 2 HPO 4, 3, and MgSO 4 7H 2 0 (Yahashi et al. 1996). The ph was adjusted to 5 with 1 M HCl. The preculture was incubated in 250 ml Erlenmeyer flask containing 100 ml of medium, agitated at 250 rpm on a rotary platform shaker for 24 h at 30 C (Rao et al. 2006). The cells recovered by centrifugation at 4000 rpm for 15 minutes, then washed twice with sterile water and used for inoculum. Fermentation Fermentations were performed to compare the performance of overliming treated medium at suggested ph with the non-treated medium. Fermentations were carried out in 250 ml cotton-plug Erlenmeyer flask containing 155 ml of production medium provided by both medium which include 135 ml hydrolyzates, 5 ml of inoculums, and 15 ml solution of nutrients similar to inoculums (Millati et al., 2002). All fermentations were done in triplicates and placed in a platform shaker at 200 rpm and at a temperature of 30 C for 76 h without controlling ph. Analysis Xylose, glucose, and xylitol were analyzed by High Performance Liquid Chromatography (HPLC) Class VP Shimadzu, Japan, using Refractive Index Detector and Inertsil NH 2 5µm column. The mobile phases used were 75% acetonitrile and 25% deionized water with flowrate of 0.5 ml/min. Furfural compound was detected by HPLC using an ultraviolet (UV-VIS) detector and C18 column under the same conditions for sugar detection. A phenolics compound was detected by spectral analysis using UV-vis spectrophotometer with absorbance at 280 nm (Wrolstad 2009). Cell concentration was estimated by measuring absorbance at 600 nm. The relationship between absorbance and dry weight (gl -1 ) was given by a standard curve. RESULTS AND DISCUSSION Table 1 shows the composition of hydrolysates of non-treated medium and overliming detoxification method. The reduction of 85% and 65% of furfural and phenol composition in the overliming detoxified method had improved the recovered hydrolysate composition, specifically for further fermentation process. Furfural and phenol compounds, which are normally derived from sugar degradation and compounds from lignocellulosic structure, are effectively removed from the hydrolysates; however, acetic acid compound could remove only 29.3% of the hydrolysate (Mussatto & Roberto 2004). According to Felipe et al. (1997), the concentration of acetic acid up to 1.0 g/l improved xylose-to-xylitol bioconversion, but concentrations higher than 3 g/l were harmful to the fermentation process. The overliming detoxification method had extensively affected the total reducing sugar. After the ph adjusted to 10, the yields of xylose and glucose were reduced by 30% and 19.5%, respectively (Fig. 1). The loss of fermentable sugars is the major drawback of these methods (Villareal et al., 2006). Pertanika J. Sci. & Technol. Vol. 19 (2)
4 Mohamad, N.L., Mustapa Kamal, S.M. and Abdullah, A.G.L TABLE 1 Composition of hydrolysate Composition Non-treated medium (g L -1 ) Detoxified medium (g L -1 ) Xylose Glucose Furfural Acetic acid Phenol TABLE 2 Volumetric productivities and yields of fermentation experiments Medium Non-treated Overliming Time (h) P m (g l -1 ) Y p/s (g g -1 ) Q p (g l -1 h -1 ) q p (g g -1 h -1 ) Y x/s (g g -1 ) U (h -1 ) Note: P m, maximum production of xylitol; Y p/s, xylitol yield on consumed xylose; Q p, volumetric productivities; q p, specific productivity; Y x/s, yield of biomass on consume xylose; U, specific growth rate In order to check the effectiveness of the detoxification, C. tropicalis was grown in the media made from raw non-treated and detoxified sago trunk hydrolysate. The non-treated medium was referred to medium that was subjected to only neutralize to the ph7. Figs. 2 and 3 showed the time courses of cell growth, xylose consumption and xylitol production in the media made from the detoxified hydrolysate and non-treated hydrolysate. The amount of glucose concentration was consumed by the micro-organism within 24 h before the depletion of xylose, and it was assumed that glucose had been converted to ethanol. The same result was also observed by Villarreal et al. (2006) using C. guilliermondii on Eucalyptus hydrolysates. As shown in Fig. 2, the production of xylitol was slowed by the inhibitors contained in the non-treated medium compared to the overliming medium. Table 3 indicates the volumetric productivity of xylitol for the non-treated medium was only gl -1 h -1 and the maximum production was g L -1. However, the fermentation process on the overliming medium improved the maximum production of xylitol to 2 folds compared to the non-treated medium with increased up to g L -1. The result of the detoxified hydrolysates of overliming methods indicates the capability of improving the yeast performance. Fig. 3 shows the trend in xylitol accumulation and xylose consumption of the non-treated and overliming treated medium. A faster xylose consumption was reached with hydrolysates subjected to overliming process. Meanwhile, xylitol accumulation was observed to increase from the beginning of fermentation. In the non-treated medium, however, no accumulation of xylitol was observed within the 24 hours of fermentation time. The glucose was completely consumed by yeast after 24 h and was followed by xylose fermentation. Xylose was completely consumed by 72 h with the xylitol concentration and yield of g L -1 and 0.73 g xylitol/g xylose. In the non-treated medium, however, the xylose consumption was faster than the overliming medium, which is 52 h with the xylitol accumulation 418 Pertanika J. Sci. & Technol. Vol. 19 (2) 2011
5 Overliming Effects on Xylitol Production from Sago Trunk Hydrolysate Sugar loss (%) Fig. 1: Amount of sugar losses after the overliming treatment (a) (b) non-treated Fig. 2: Cell growth of C. tropicalis on the non-treated medium ( ) and overliming medium ( ); (a) optical density at 600 nm, and (b) dry cell weight Pertanika J. Sci. & Technol. Vol. 19 (2)
6 Mohamad, N.L., Mustapa Kamal, S.M. and Abdullah, A.G.L xylose, xylitol, glucose (g/l) Fermentation time (hr) xylose, xylitol, glucose (g/l) Fermentation time (hr) Fig. 3: Time courses for xylitol accumulation in (a) non-treated medium, and (b) overliming medium of g L -1 and yield of only 0.23 g xylitol/g xylose (Table 2). This results demonstrated the ability of yeast to convert xylose to high production of xylitol after the overliming process. On the basis of the above results, overliming has been proven to be the selected method for the detoxification of hydrolysates with excellent yield; Y p/s was obtained (0.729 gg -1 ) at good productivity (0.25 gl -1 h -1 ) with the maximum xylitol production of gl -1 (Table 2). 420 Pertanika J. Sci. & Technol. Vol. 19 (2) 2011
7 Overliming Effects on Xylitol Production from Sago Trunk Hydrolysate CONCLUSION This study represented the main outcome of detoxification method and lime to improve the fermentability of hydrolysates by using Candida tropicalis. The results have been proven using the overliming method, while the volumetric productivity and yields were found to have increased to two folds compared to the non-treated medium. Thus, an optimal strategy should be carried out and taken into consideration since chemical detoxification degrades the sugar content of the hydrolysates, is cost extensive and produces waste as well. A combination of hydrolysate detoxification may be a general solution for dilute-acid hydrolysate continuous cultivation to achieve high xylitol productivity. ACKNOWLEDGEMENT The authors wish to thank the Ministry of Science, Technology and Environment, Malaysia (MOSTI), for the financial support given under SCIENCE-FUND (Project: SF0815). REFERENCES Cruz, J.M., Domínguez, J.M., Domínguez, H., & Parajó, J.C. (1999). Solvent extraction of hemicellulosic wood hydrolysates: A procedure useful for obtaining both detoxified fermentation media and polyphenols with antioxidant activity. Food Chemistry, 67, Dominguez, J.M., Cao, N., Gong, C.S., & Tsao, G.T. (1997) Dilute acid hemicellulose hydrolysates from corn cobs for xylitol production by yeast. Bioresource Technology, 61, Felipe, M.G.A., Vitolo, M., Mancilha, I.M., & Silva, S.S. (1997). Fermentation of sugar cane bagasse hemicellulosichydrolysate for xylitol production: Effect of ph. Biomass and Bioenergy, 13, Millati, R., Niklasson, C., & Taherzadeh, M.J. (2002). Effect of ph, time and temperature of overliming on detoxification of dilute-acid hydrolyzates for fermentation by Saccharomyces cerevisiae. Process Biochemistry, 38, Mohagheghi, A., Ruth, M., & Schell, D.J. (2006). Conditioning hemicellulose hydrolysates for fermentation: Effects of overliming ph on sugar and ethanol yields. Process Biochemistry, 41, Mussatto, S.I., Dragone, G., & Roberto, I.C. (2005). Influence of the toxic compounds present in brewer s spent grain hemicellulosichydrolysate on xylose-to-xylitol bioconversion by Candida guilliermondii. Process Biochemistry, 40, Mussatto, S.I., & Roberto, I.C. (2004). Alternatives for detoxification of diluted-acid lignocellulosichydrolyzates for use in fermentative processes: A review. Bioresource Technology, 93, Palmqvist, E., & Hagerdal, B.H. (2000). Fermentatiom of lignocellulosichydrolysates. I: Inhibition and detoxificaton. Bioresource Technology, 74, Parajó, J.C., Domínguez, H., & Domínguez, J. (1998). Biotechnological production of xylitol. Part 1: Interest of xylitol and fundamentals of its biosynthesis. Bioresource Technology, 65, Parajó, J.C., Domínguez, H., & Domínguez, J.M. (1996). Xylitol from wood: Study of some operational strategies. Food Chemistry, 57, Pushpamalar, V., Langford, S.J., Ahmad, M., & Lim, Y.Y. (2006). Optimization of reaction conditions for preparing carboxymethyl cellulose from sago waste. Carbohydrate Polymers, 64, Rahman, K.A.A.A. (2009). Utilizing sago (Metroxymmon spp.) Bark waste for value added products. IEEE Xplore. Pertanika J. Sci. & Technol. Vol. 19 (2)
8 Mohamad, N.L., Mustapa Kamal, S.M. and Abdullah, A.G.L Rao, R.S., Jyothi, C.P., Prakasham, R.S., Sarma, P.N., & Rao, L.V. (2006). Xylitol production from corn fiber and sugarcane bagasse hydrolysates by Candida tropicalis. Bioresource Technology, 97, Roberto, I.C., Felipe, M.G.A., Lacis, L.S., Silva, S.S., & de Mancilha, I.M. (1991). Utilization of sugar cane bagasse hemicellulosichydrolyzate by Candida guilliermondii for xylitol production. Bioresource Technology, 36, Villarreal, M.L.M., Prata, A.M.R., Felipe, M.G.A., & Almeida E Silva, J.B. (2006). Detoxification procedures of eucalyptus hemicellulose hydrolysate for xylitol production by Candida guilliermondii. Enzyme and Microbial Technology, 40, Wrolstad, R.Z. (Ed.). (2009). Current protocols in food analytical chemistry. (n.p.): John Wiley and Sons. Yahashi, Y., Horitsu, H., Kawai, K., Suzuki, T., & Takamizawa, K. (1996). Production of xylitol from -xylose by Candida tropicalis: The effect of glucose feeding. Journal of Fermentation and Bioengineering, 81, Pertanika J. Sci. & Technol. Vol. 19 (2) 2011
Detoxification of sago trunk hydrolysate using activated charcoal for xylitol production
Procedia Food Science 1 (2011) 908 913 11 th International Congress on Engineering and Food (ICEF11) Detoxification of sago trunk hydrolysate using activated charcoal for xylitol production Siti M. Mustapa
More informationProduction Process of Hydrolysate from Steam Explosion of Oil Palm Trunk for Xylitol Fermentation
Kasetsart J. (Nat. Sci.) 42 : 73-78 (2008) Production Process of Hydrolysate from Steam Explosion of Oil Palm Trunk for Xylitol Fermentation Pitchaya Pumiput 1 *, Sawitri Chuntranuluck 1, Vichien Kitpreechavanich
More informationVolume: 2: Issue-3: July-Sept ISSN EFFECT OF NITROGEN SOURCES ON MICROBIAL PRODUCTION OF XYLITOL. K. Srivani 1 and Y.
Volume: 2: Issue-3: July-Sept -2011 ISSN 0976-4550 EFFECT OF NITROGEN SOURCES ON MICROBIAL PRODUCTION OF XYLITOL K. Srivani 1 and Y. Pydi Setty 2 1 Department of Chemical Engineering, National Institute
More informationBiological Production of Xylitol from Corn Husk and Switchgrass by Pichia stiptis
Research Journal of Chemical Sciences ISSN 2231-606X Biological Production of Xylitol from Corn Husk and Switchgrass by Pichia stiptis Abstract Chaudhary Neeru *, Balomajumder Chandrajit and Jagati Vidyasagar
More informationIncrease of Xylitol Production Rate by Controlling Redox Potential in Candida parapsilosis
Increase of Xylitol Production Rate by Controlling Redox Potential in Candida parapsilosis Deok-Kun Oh, 1 Sang-Yong Kim, 2 Jung-Hoe Kim 3 1 Department of Food Science and Technology, Woosuk University,
More informationEthanol Production from Biomass - Optimization of Simultaneous Saccharification and Fermentation with Respect to Stirring and Heating
Ethanol Production from Biomass - Optimization of Simultaneous Saccharification and Fermentation with Respect to Stirring and Heating JESPER NÖRGÅRD Department. of Chemical Engineering, Lund Institute
More informationMOLECULAR IDENTIFICATION AND FACTORIAL MICROBIAL ISOLATES FOR POLYOL PRODUCTION
ISSN: 0974-1496 e-issn: 0976-0083 CODEN: RJCABP http://www.rasayanjournal.com http://www.rasayanjournal.co.in MOLECULAR IDENTIFICATION AND FACTORIAL OPTIMIZATION OF MICROBIAL ISOLATES FOR POLYOL PRODUCTION
More informationMetabolic Behavior of Immobilized Candida guilliermondii Cells During Batch Xylitol Production from Sugarcane Bagasse Acid Hydrolyzate
Metabolic Behavior of Immobilized Candida guilliermondii Cells During Batch Xylitol Production from Sugarcane Bagasse Acid Hydrolyzate Walter Carvalho, 1 Silvio S. Silva, 1 Attilio Converti, 2 Michele
More informationXylitol production from lignocellulosic hydrolysates
Xylitol production from lignocellulosic hydrolysates Young-Jae Jeon a, Hyoun-Sung Shin b and Peter L. Rogers a a : School of Biotechnology and Biomolecular Sciences The University of New South Wales b
More informationThis is a refereed journal and all articles are professionally screened and reviewed
Advances in Environmental Biology, 5(11): 3613-3619, 2011 ISSN 1995-0756 3613 This is a refereed journal and all articles are professionally screened and reviewed ORIGINAL ARTICLE Microbial Production
More informationXylo-oligosaccharides and Ethanol Production from Liquid Hot Water Hydrolysate of Sugarcane Bagasse
Xylo-oligosaccharides and Ethanol Production from Liquid Hot Water Hydrolysate of Sugarcane Bagasse Qiang Yu, a Chunxun Xu, a,b Xinshu Zhuang, a, * Zhenhong Yuan, a Minchao He, a and Guixiong Zhou a With
More informationEffect Of Alkali Pretreatment and Enzymatic Saccharification on Bagasse Reducing Sugar For Bioethanol Production
1). Technical Implementation Unit for Development of Chemical Engineering Processes GunungKidul, Yogyakarta, Indonesia. Effect Of Alkali Pretreatment and Enzymatic Saccharification on Bagasse Reducing
More informationAerobic and sequential anaerobic fermentation to produce xylitol and ethanol using non-detoxified acid pretreated corncob
Cheng et al. Biotechnology for Biofuels 1, 7:1 RESEARCH Open Access Aerobic and sequential anaerobic fermentation to produce xylitol and ethanol using non-detoxified acid pretreated corncob Ke-Ke Cheng
More informationInternational Journal of Pharma and Bio Sciences
Research Article Biotechnology International Journal of Pharma and Bio Sciences ISSN 0975-6299 BIOETHANOL PRODUCTION FROM CELLULOSE IN RED ALGAE Gracilaria verrucosa BY SEPARATED HYDROLYSIS AND FERMENTATION
More informationPretreatment of Prevalent Canadian West Coast Softwoods Using the Ethanol Organosolv Process Assessing Robustness of the Ethanol Organosolv Process
Pretreatment of Prevalent Canadian West Coast Softwoods Using the Ethanol Organosolv Process Assessing Robustness of the Ethanol Organosolv Process Johanna Johansson Department of Chemical Engineering,
More informationAN ENZYMATIC PROCESS OF BIOETHANOL PRODUCTION USING AGRICULTURAL WASTES BY Saccharomyces cerevisiae (MTCC 173) AND Zymomonas mobilis (MTCC 2427)
AN ENZYMATIC PROCESS OF BIOETHANOL PRODUCTION USING AGRICULTURAL WASTES BY Saccharomyces cerevisiae (MTCC 173) AND Zymomonas mobilis (MTCC 2427) A. Pranavya 1, C. Saravanamurugan 1 and S. Rajendran 2.
More informationProduction of xylitol from biomass using an inhibitor-tolerant fungus
Production of xylitol from biomass using an inhibitor-tolerant fungus Nancy Nichols National Center USDA ARS National Center for Agricultural Utilization Research Peoria IL USA Peoria, IL Biomass conversion
More informationCellulosic Biomass Chemical Pretreatment Technologies
Life-changing Research and Development Cellulosic Biomass Chemical Pretreatment Technologies September 6, 2007 Keith Pauley Keith.Pauley@matricresearch.com 800-611-2296 Chemical and Environmental Technologies
More informationEconomical Production of Xylitol from Candida magnoliae TISTR 5663 Using Sugarcane Bagasse Hydrolysate
Kasetsart J. (Nat. Sci.) 49 : 583-596 (2015) Economical Production of Xylitol from Candida magnoliae TISTR 5663 Using Sugarcane Bagasse Hydrolysate Siwaporn Wannawilai 1,2 and Sarote Sirisansaneeyakul
More informationSteam Pretreatment Optimisation for Sugarcane Bagasse in Bioethanol Production
Steam Pretreatment Optimisation for Sugarcane Bagasse in Bioethanol Production Johan Sendelius Master of Science Thesis 2005 Department of Chemical Engineering, Lund University, Sweden Abstract: Steam
More informationEnhanced Xylitol Production from Statistically Optimized Fermentation of Cotton Stalk Hydrolysate by Immobilized Candida tropicalis
Q. ZHANG et al., Enhanced Xylitol Production from Statistically Optimized Fermentation, Chem. Biochem. Eng. Q., 8 (1) 87 93 (014) 87 Enhanced Xylitol Production from Statistically Optimized Fermentation
More informationSeparation and Purification: the Missing Link Between Biomass Deconstruction and Commercial Products
Separation and Purification: the Missing Link Between Biomass Deconstruction and Commercial Products World Congress on Industrial Biotechnology May 12th John Bhatt Novasep Inc. 1 Industrial Purification
More informationThe CIMV organosolv Process. B. Benjelloun
The CIMV organosolv Process B. Benjelloun 2 BIOREFINERY CONCEPT THE CIMV PROCESS Based on the oil refining model. Promote 100% of the non-food Biomass in Biofuels and/or Bioproducts. High feedstocks fexilibility
More informationComparison of Laboratory and Industrial Saccharomyces cerevisiae Strains for Their Inhibitor Resistance and Xylose Utilization
Comparison of Laboratory and Industrial Saccharomyces cerevisiae Strains for Their Inhibitor Resistance and Xylose Utilization Geng Anli*, Wang Zhankun, Lai Kok Soon and Tan Wei Yi Mark, Goh Kiow Leng
More informationProduction of Ethanol by Fed-Batch Fermentation
Pertanika J. Sci. & Technol. 17 (2): 399 408 (2009) ISSN: 0128-7680 Universiti Putra Malaysia Press Production of Ethanol by Fed-Batch Fermentation Ngoh Gek Cheng 1*, Masitah Hasan 1, Andri Chahyo Kumoro
More informationCellulosic Conversion to Bioethanol from Pongamia Pod A Biodiesel Industry Waste
International OPEN ACCESS Journal Of Modern Engineering Research (IJMER) Cellulosic Conversion to Bioethanol from Pongamia Pod A Biodiesel Industry Waste Yashaswi R.Metri 1, Dr.Bharati S.Meti 2 Department
More informationA Comparison of Dilute Sulfuric and Phosphoric Acid Pretreatments in Biofuel Production from Corncobs
A Comparison of Dilute Sulfuric and Phosphoric Acid Pretreatments in Biofuel Production from Corncobs Jirakarn Nantapipat, Apanee Luengnaruemitchai, and Sujitra Wongkasemjit Abstract Biofuels, like biobutanol,
More informationRice Straws and Husks Biofuel: Emphasizing on Selection of Pre-Treatment Method Elza Firdiani Shofia, Kharisma Bangsa Senior High School, Indonesia
Rice Straws and Husks Biofuel: Emphasizing on Selection of Pre-Treatment Method Elza Firdiani Shofia, Kharisma Bangsa Senior High School, Indonesia Picture: Indonesian farmers are harvesting rice. There
More informationSTRAIN ISOLATION AND STUDY ON PROCESS PARAMETERS FOR XYLOSE- TO-XYLITOL BIOCONVERSION
Article DOI: 1.2478/v1133-1-13-7 FB Food BIOTECHNOLOGY STRAIN ISOLATION AND STUDY ON PROCESS PARAMETERS FOR XYLOSE- TO-XYLITOL BIOCONVERSION K.-K. Cheng 1, H.-Z. Ling 2, J.-A. Zhang 1, W.-X. Ping 2, W.
More informationXylitol Production from Corn Cobs Hemicellulosic Hydrolysate by Candida tropicalis Immobilized Cells in Hydrogel Copolymer Carrier
INTERNATIONAL JOURNAL OF AGRICULTURE & BIOLOGY 156 853/24/6 6 166 173 http://www.ijab.org Xylitol Production from Corn Cobs Hemicellulosic Hydrolysate by Candida tropicalis Immobilized Cells in Hydrogel
More informationChallenges of Ethanol Production from Lignocellulosic Biomass
Challenges of Ethanol Production from Lignocellulosic Biomass Maha Dakar Varieties of Carbohydrates Sugar Starch Cellulose/Hemicellulose What All Plants Have in Common Cellulose Glucose Why is it difficult
More informationAvailable online at ScienceDirect. Energy Procedia 47 (2014 )
Available online at www.sciencedirect.com ScienceDirect Energy Procedia 47 (2014 ) 268 272 Conference and Exhibition Indonesia Renewable Energy & Energy Conservation [Indonesia EBTKE CONEX 2013] Optimization
More informationFABRICATION OF BIOREACTOR UTILIZING HOLLOW FIBER MEMBRANE FOR RUMEN HYDROLYSIS OF SWEET SORGHUM
FABRICATION OF BIOREACTOR UTILIZING HOLLOW FIBER MEMBRANE FOR RUMEN HYDROLYSIS OF SWEET SORGHUM Raymond B. Barajas, George P. Qua, Kenneth A. Icaro, Florinda T. Bacani * Chemical Engineering Department,
More informationScreening and Parameters Optimization of Pentose Fermenting Yeasts for Ethanol Production using Simulated Media
BIOSCIENCES BIOTECHNOLOGY RESEARCH ASIA, August 2014. Vol. 11(2), 641-648 Screening and Parameters Optimization of Pentose Fermenting Yeasts for Ethanol Production using Simulated Media Sirous Kalhorinia,
More informationAvailable online at ScienceDirect. Procedia Engineering 90 (2014 )
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 90 (2014 ) 504 509 10th International Conference on Mechanical Engineering, ICME 2013 Production of bio-fuel (bio-ethanol) from
More informationCOMPARISON OF DIFFERENT PRETREATMENT METHODS ON DEGRADATION OF RYE STRAW
COMPARISON OF DIFFERENT PRETREATMENT METHODS ON DEGRADATION OF RYE STRAW Marti Tutt, Timo Kikas, Juri Olt Estonian University of Life Sciences marti.tutt@emu.ee Abstract. This article investigates the
More informationRecent Developments and Current Situation of Cellulosic Ethanol R&D in Brazil
Recent Developments and Current Situation of Cellulosic Ethanol R&D in Brazil Research Center in Applied Chemistry Department of Chemistry Federal University of Paraná (UFPR), Brazil www.quimica.ufpr.br/paginas/luiz-ramos
More informationMicrobial Cell Factories. Open Access RESEARCH. Hengwei Wang 1, Lijuan Li 2, Lebin Zhang 2, Jin An 2, Hairong Cheng 2* and Zixin Deng 2
DOI 10.1186/s12934-016-0480-0 Microbial Cell Factories RESEARCH Open Access Xylitol production from waste xylose mother liquor containing miscellaneous sugars and inhibitors: one pot biotransformation
More informationBIOETHANOL PRODUCTION FROM RICE BRAN BY SACCHAROMYCES CEREVISIAE. *Corresponding author:
BIOETHANOL PRODUCTION FROM RICE BRAN BY SACCHAROMYCES CEREVISIAE K. Harismah 1, M. Da i 2, A. Asngad 3, Samlawi 4 1 Department of Chemical Engineering, 2 Department of Biology Education, 3 Faculty of Pharmacy
More informationValue Maximization through PRAJ's 2nd Generation Smart Bio Refinery. Amol Sheth October, 17 th 2016
Value Maximization through PRAJ's 2nd Generation Smart Bio Refinery Amol Sheth October, 17 th 2016 Discussion Points Technology development & commercialization Praj s 2G Ethanol Technology Innovative Tech.
More informationEthanol From Cellulose: A General Review
Reprinted from: Trends in new crops and new uses. 2002. J. Janick and A. Whipkey (eds.). ASHS Press, Alexandria, VA. Ethanol From Cellulose: A General Review P.C. Badger INTRODUCTION The use of ethanol
More informationBiorefinery concepts for non-wood raw materials Dr. Päivi Rousu Vice President, R&D, IPR
The future is BIOREFINING Biorefinery concepts for non-wood raw materials Dr. Päivi Rousu Vice President, R&D, IPR Outline of presentation Chempolis corporation formico - 3 rd generation biorefining technologies
More informationAlka Tangri, Ruchi Bajpai and Lalit K. Singh
International Journal of Scientific & Engineering Research, Volume 5, Issue, October-24 63 Improvement in xylitol production from wheat straw hemicellulosic hydrolysate achieved by the use of immobilized
More informationKinetic behavior of Candida tropicalis during xylitol production using semi-synthetic and hydrolysate based media
African Journal of Biotechnology Vol. 10(73), pp. 16617-16625, 21 November, 2011 Available online at http://www.academicjournals.org/ajb DOI: 10.5897/AJB11.1766 ISSN 1684 5315 2011 Academic Journals Full
More informationLab #2 Bioreactors and Fermentation
Lab #2 Bioreactors and Fermentation Outline Goals of Lab Yeast Fermentation Bioreactor Analysis equipment Hemacytometer, cellometer, spectrophotometer, HPLC system 2 Goals of Lab Familiarization with a
More informationHYBRID STAGED THERMOLYSIS TO VALORISE BIOMASS Paul de Wild, March 11, 2009
HYBRID STAGED THERMOLYSIS TO VALORISE BIOMASS Paul de Wild, March 11, 2009 Bioenergy - II: Fuels and Chemicals from Renewable Resources March 8-13, 2009, Rio de Janeiro, Brazil INTRODUCTION Lignocellulosic
More informationOptimization of Controlled ph Liquid Hot Water Pretreatment of Corn Fiber and Stover
Optimization of Controlled ph Liquid Hot Water Pretreatment of Corn Fiber and Stover Nathan Mosier, Rick Hendrickson, Youngmi Kim, Meijuan Zeng, Bruce Dien, Gary Welch, Charles Wyman and Michael Ladisch
More informationEvaluation of bamboo as a feedstock for bioethanols in Taiwan
Evaluation of bamboo as a feedstock for bioethanols in Taiwan Ya-Nang Wang 1,2, Chun-Han Ko 2,3,*, Chih-Yuan Lee 2, Heng-Ping Tsai 2, Wen-Hua Chen 4, Wen-Song Hwang 4, Ming-Jer Tsai 1,2, Fang-Chih Chang
More informationEnzymatic synthesis of levan polysaccharide by Bacillus licheniformis levansucrase. Imen Dahech*, Rania Bredai, Karima Srih
ISSN : 0974-7427 Volume 8 Issue 5 Enzymatic synthesis of levan polysaccharide by Bacillus licheniformis levansucrase Imen Dahech*, Rania Bredai, Karima Srih Biochemistry laboratory, Faculty of sciences
More informationPRODUCTION OF CANDIDA BIOMASS FROM HYDROLYSED AGRICULTURAL BIOWASTE
Article DOI: 1.2478/v1133-1-8-4 A&EB PRODUCTION OF CANDIDA BIOMASS FROM HYDROLYSED AGRICULTURAL BIOWASTE N.D. Dimova, Z.S. Iovkova, M. Brinkova, Ts.I. Godjevargova University Prof. As. Zlatarov, Department
More informationCultivation of Candida langeronii in sugar cane bagasse hemicellulosic hydrolyzate for the production of single cell protein
World Journal of Microbiology & Biotechnology 16: 367±372, 2000. 367 Ó 2000 Kluwer Academic Publishers. Printed in the Netherlands. Cultivation of Candida langeronii in sugar cane bagasse hemicellulosic
More informationContinuous Countercurrent Extraction of Hemicellulose from Pretreated Wood Residues
Copyright Extraction 2001 of Hemicellulose by Humana Press Inc. 253 All rights of any nature whatsoever reserved. 0273-2289/01/91 93/0253/$13.75 Continuous Countercurrent Extraction of Hemicellulose from
More informationBiodegradation of karathane using adapted Pseudomonas aeruginosa in scale up process
Romanian Biotechnological Letters Vol. 16, No. 2, 2011 Copyright 2011 University of Bucharest Printed in Romania. All rights reserved ORIGINAL PAPER Biodegradation of karathane using adapted Pseudomonas
More informationThe objective of this work was the production of ethanol
1.12 Bioethanol from sugar cane bagasse Urribarrí, Lauris 1 * Ferrer, Alexis 2 Aiello, Cateryna 3 Rivera, Jhoandry 4 Abstract The objective of this work was the production of ethanol by simultaneous saccharification
More informationBio-production of a Polyalcohol (Xylitol) from Lignocellulosic Resources: A Review
The Canadian Society for Bioengineering The Canadian society for engineering in agricultural, food, environmental, and biological systems. La Société Canadienne de Génie Agroalimentaire et de Bioingénierie
More informationEXPERTISE BIOMASS PRETREATMENT BIOMASS PRETREATMENT BIOCATALYSIS FERMENTATION GREEN CHEMISTRY PRODUCT RECOVERY AND PURIFICATION
BIOMASS PRETREATMENT BIOMASS PRETREATMENT BIOCATALYSIS FERMENTATION GREEN CHEMISTRY PRODUCT RECOVERY AND PURIFICATION BIOMASS PRETREATMENT Equipment overview: Reactors for chemical pretreatment of biomass:
More informationShodex HPLC approach for biomass related analysis
Shodex HPLC approach for biomass related analysis Kanna Ito, Shodex /Showa Denko America, Inc. Data provided by Showa Denko K.K. Introduction: Biomass is a renewable energy source obtained from biological
More informationBy Dr S.K.PURI Indian Oil Corporation Limited, R&D Centre, FARIDABAD 22 nd Jan., 2016
2 nd Generation Ethanol -A Prospective- By Dr S.K.PURI Indian Oil Corporation Limited, R&D Centre, FARIDABAD 22 nd Jan., 2016 BIO-FUELS Fuel produced from renewable biomass material, commonly used as an
More informationFERMENTATION OF HEXOSES AND PENTOSES FROM HYDROLYZED SOYBEAN HULL INTO ETHANOL AND XYLITOL BY Candida guilliermondii BL 13
Brazilian Journal of Chemical Engineering ISSN 0104-6632 Printed in Brazil www.scielo.br/bjce Vol. 34, No. 04, pp. 927 936, October December, 2017 dx.doi.org/10.1590/0104-6632.20170344s20160005 FERMENTATION
More informationWOOD BASED BIOREFINERIES OPPORTUNITIES AND CHALLENGES. Dr. Christian Hübsch, UPM Biochemicals IFIB 2015, Lodi,
WOOD BASED BIOREFINERIES OPPORTUNITIES AND CHALLENGES Dr. Christian Hübsch, UPM Biochemicals IFIB 2015, Lodi, 24.9.2015 UPM today UPM Plywood Plywood and veneer products UPM Biorefining Pulp Plantations
More informationA novel, repeated fed-batch, ethanol production system with extremely long term stability achieved by fully recycling fermented supernatants
Biotechnology Letters 25: 1819 1826, 2003. 2003 Kluwer Academic Publishers. Printed in the Netherlands. 1819 A novel, repeated fed-batch, ethanol production system with extremely long term stability achieved
More informationRenewable Energy Systems
Renewable Energy Systems 9 Buchla, Kissell, Floyd Chapter Outline Biomass Technologies 9 9-1 THE CARBON CYCLE 9-2 BIOMASS SOURCES 9-3 BIOFUELS: ETHANOL 9-4 BIOFUELS: BIODIESEL AND GREEN DIESEL 9-5 BIOFUELS
More informationMekonnen M Demeke 1,2, Françoise Dumortier 1,2, Yingying Li 1,2, Tom Broeckx 1,2, María R Foulquié-Moreno 1,2 and Johan M Thevelein 1,2*
Demeke et al. Biotechnology for Biofuels 2013, 6:120 RESEARCH Open Access Combining inhibitor tolerance and D-xylose fermentation in industrial Saccharomyces cerevisiae for efficient lignocellulose-based
More informationThomas Grotkjær Biomass Conversion, Business Development
NOVOZYMES AND BETA RENEWABLES DEPLOY WORLD CLASS CELLULOSIC ETHANOL TECHNOLOGY TO MARKET FROM BIOMASS TO BIOENERGY BIO WORLD CONGRESS, PHILADELPHIA, 13 MAY 2014 Thomas Grotkjær Biomass Conversion, Business
More informationContinuous Xylose Fermentation by Candida shehatae in a Two-Stage Reactor
In: Scott, Charles D., ed. Proceedings of the 9th symposium on biotechnology for fuels and chemicals; 1987 May 5-8; Boulder, CO. In: Applied Biochemistry and Biotechnology. Clifton, NJ: Humana Press; 1988:
More informationProduction of bio-ethanol from corncobs using Aspergillus niger and Saccharomyces cerevisae in simultaneous saccharification and fermentation
African Journal of Biotechnology Vol. 8 (13), pp. 3018-3022, 6 July, 2009 Available online at http://www.academicjournals.org/ajb ISSN 1684 5315 2009 Academic Journals Full Length Research Paper Production
More informationBATCH CULTURE THERMO TOLERANCE OF SACCHAROMYCES CEREVISIAE DURING INVERTASE PRODUCTION
Pak. J. Biotechnol. Vol. 4 (1-2) 7-13 (2007) ISSN. 1812-1837 IBGE, University of Sindh, Jamshoro, Pakistan BATCH CULTURE THERMO TOLERANCE OF SACCHAROMYCES CEREVISIAE DURING INVERTASE PRODUCTION ABSTRACT
More informationInfluence of different SSF conditions on ethanol production from corn stover at high solids loadings
Downloaded from orbit.dtu.dk on: Feb 03, 2018 Influence of different SSF conditions on ethanol production from corn stover at high solids loadings Gladis, Arne Berthold; Bondesson, Pia-Maria; Galbe, Mats;
More informationCHAPTER 6 STUDY ON THE EFFECT OF PRETREATMENT AND ENZYMATIC HYDROLYSIS IN BIOETHANOL PRODUCTION
CHAPTER 6 STUDY ON THE EFFECT OF PRETREATMENT AND ENZYMATIC HYDROLYSIS IN BIOETHANOL PRODUCTION 6.1 INTRODUCTION The growing industrialization and population has increased the energy requirement due to
More informationEnhanced production of microbial cellulose
Enhanced production of microbial cellulose 2009 International Conference on Nanotechnology for the Forest Products Industry June 23 26, 2009 Jeffrey Catchmark, Kuan Chen Cheng and Ali Demirci Department
More informationCell Growth and DNA Extraction- Technion igem HS
Growing Cells and DNA Extraction Goals 1. Become familiar with the process of growing bacteria 2. Get to know the DNA extraction process 3. Perform miniprep in the lab Keywords 1. Growth stages 6. Techniques
More informationRenewable Chemicals from the Forest Biorefinery
11 th Annual Congress on Industrial Biotechnology May 12 15, 2014 Philadelphia, PA Renewable Chemicals from the Forest Biorefinery François Zasieczny, Mariya Marinova, Tom Browne, Michel Perrier The Forest
More informationWaste to Enzymes through Solid State Fermentation
Waste to Enzymes through Solid State Fermentation Agamuthu, P. and Nithiya, A. University of Malaya Contact Contact name : Nithiya, A. Organization : Solid Waste and Hazardous Laboratory, University Malaya
More informationBACTERIALLY GENERATED H 2 SO 4 FROM PYRITE, AS A LEACHING AGENT FOR PHOSPHORUS FROM PHOSPHATE ORE
The 45 th International October Conference on Mining and Metallurgy 16-19 October 2013, Bor Lake, Bor (Serbia) www.ioc.tf.bor.ac.rs BACTERIALLY GENERATED H 2 SO 4 FROM PYRITE, AS A LEACHING AGENT FOR PHOSPHORUS
More informationIndustrial microbiology
Industrial microbiology pp. 166-173, 1032-1038, 1039-1045,1046-1050 Ed van Niel Ed.van_Niel@tmb.lth.se We are here Industrial microbiology biotechnology Why the increased interest Microbiological versus
More informationAcid And Alkaline Pretreatment Of Lignocellulosic Biomass To Produce Ethanol As Biofuel
International Journal of ChemTech Research CODEN( USA): IJCRGG ISSN : 0974-4290 Vol.5, No.2, pp 727-734, April-June 2013 ICGSEE-2013[14 th 16 th March 2013] International Conference on Global Scenario
More informationDoes densification (pelletisation) restrict the biochemical conversion of biomass?
Does densification (pelletisation) restrict the biochemical conversion of biomass? Linoj Kumar, Zahra Tooyserkani Shahab Sokhansanj, Richard Chandra Jack Saddler* Forest Products Biotechnology/Bioenergy
More informationProduction of bio-based chemicals and polymers from industrial waste and byproduct streams
Section II. Developments in biorefinery: feedstocks, processes and products (I) Production of bio-based chemicals and polymers from industrial waste and byproduct streams Apostolis Koutinas Group of Food
More informationExtraction of high molecular mass hemicelluloses prior to ethanol production. Alkali steam pretreatment of wheat and barley straw. Elisabeth Joelsson
Extraction of high molecular mass hemicelluloses prior to ethanol production Alkali steam pretreatment of wheat and barley straw Elisabeth Joelsson Department of Chemical Engineering Lund University P.O.
More informationStudy of Different Bio-Processing Pathways in a Lignocellulosic Biorefinery by Process Simulation
A publication of CHEMICAL ENGINEERING TRANSACTIONS VOL. 35, 2013 Guest Editors: Petar Varbanov, Jiří Klemeš, Panos Seferlis, Athanasios I. Papadopoulos, Spyros Voutetakis Copyright 2013, AIDIC Servizi
More informationInfluence of Oxygen Availability on Cell Growth and Xylitol Production by Candida guilliermondii
Copyright Oxygen Availability 2002 by Humana on Press Cell Inc. Growth and Xylitol Production 449 All rights of any nature whatsoever reserved. 0273-2289/02/98-100/0449/$12.50 Influence of Oxygen Availability
More informationFROM KRAFT MILL TO FOREST BIOREFINERY: AN ENERGY AND WATER PERSPECTIVE. II. CASE STUDY
CELLULOSE CHEMISTRY AND TECHNOLOGY FROM KRAFT MILL TO FOREST BIOREFINERY: AN ENERGY AND WATER PERSPECTIVE. II. CASE STUDY MARIYA MARINOVA, ENRIQUE MATEOS-ESPEJEL and JEAN PARIS École Polytechnique, Chemical
More informationLAP-008. Procedure Title: Author(s): Nancy Dowe, Jim McMillan Date: ISSUE DATE: SUPERSEDES:
Biofuels Program Biomass Analysis Technology Team Laboratory Analytical Procedure Procedure Title: LAP-008 SSF Experimental Protocols: Lignocellulosic Biomass Hydrolysis and Fermentation Author(s): Nancy
More informationEffects of Different Carbon Sources for High- Level Lactic Acid Production by Lactobacillus Casei
Effects of Different Carbon Sources for High- Level Lactic Acid Production by Lactobacillus Casei S. S. Hassan 1,*,a, R. Abd Malek 2,b, A. Atim 1,c, S. S. Jikan 1,d, S. F. Z. Mohd Fuzi 1,e 1 Faculty of
More informationThe Effect of Environmental parameters on Vitamin B 2 Production from Hydrocarbons by Aspergillus awamori NRRL 3112
The Effect of Environmental parameters on Vitamin B 2 Production from Hydrocarbons by Aspergillus awamori NRRL 3112 Vaishnavi M. and David K. Daniel 1 Bioprocess Engineering Laboratory, Chemical Engineering
More informationBacterial strain and growth condition
International Journal of ChemTech Research CODEN( USA): IJCRGG ISSN : 0974-4290 Vol.1, No.2, pp 344-348, April-June 2009 Microbial Production of Hydrogen from Sugarcane Bagasse using Bacillus Sp. T.R.Manikkandan
More informationValorization of sunflower meal through the production of ethanol from the hemicellulosic fraction
ISSN 1807-1929 Revista Brasileira de Engenharia Agrícola e Ambiental v.20, n.11, p.1036-1042, 2016 Campina Grande, PB, UAEA/UFCG http://www.agriambi.com.br DOI: http://dx.doi.org/10.1590/1807-1929/agriambi.v20n11p1036-1042
More information2015 AQ Summit: Research Update by Peter Van Walsum
The University of Maine DigitalCommons@UMaine Annual Maine Aquaculture R&D and Education Summits Conferences and Summits 1-14-2015 2015 AQ Summit: Research Update by Peter Van Walsum Peter Van Walsum Follow
More informationMild fractionation of wood and plants into G2 Micro Cellulose and Lignine
Mild fractionation of wood and plants into G2 Micro Cellulose and Lignine BIOeCON G2 technology unique, simple, and cost effective Internationaal Innovatie-evenement papieren kartonketen February 1, 2017,
More informationXylitol Production from Rice Straw Hemicellulose Hydrolyzate by Polyacrylic Hydrogel Thin Films with Immobilized Candida subtropicalis WF79
JOURNAL OF BIOSCIENCE AND BIOENGINEERING Vol. 105, No. 2, 97 105. 2008 DOI: 10.1263/jbb.105.97 2008, The Society for Biotechnology, Japan Xylitol Production from Rice Straw Hemicellulose Hydrolyzate by
More information2.4 TYPES OF MICROBIAL CULTURE
2.4 TYPES OF MICROBIAL CULTURE Microbial culture processes can be carried out in different ways. There are three models of fermentation used in industrial applications: batch, continuous and fed batch
More informationBioconversion of hydrolyzed cashew peduncle bagasse for ethanol and xylitol production
ISSN 1807-1929 Revista Brasileira de Engenharia Agrícola e Ambiental v.21, n.7, p.488-492, 2017 Campina Grande, PB, UAEA/UFCG http://www.agriambi.com.br DOI: http://dx.doi.org/10.1590/1807-1929/agriambi.v21n7p488-492
More informationBalakrishnaraja Rengaraju et al. Int. Res. J. Pharm. 2017, 8 (7) INTERNATIONAL RESEARCH JOURNAL OF PHARMACY
INTERNATIONAL RESEARCH JOURNAL OF PHARMACY www.irjponline.com ISSN 2230 8407 Research Article FERMENTATIVE PRODUCTION AND STATISTICAL OPTIMIZATION OF ACTIVE PHARMACEUTICAL INGREDIENT, XYLITOL USING NOVEL
More informationPretreatment and Enzymatic Hydrolysis from Water Hyacinth (Eichhornia crassipes)
Pretreatment and Enzymatic Hydrolysis from Water Hyacinth (Eichhornia crassipes) Atcharaporn Jongmeesuk 1*, Vorapat Sanguanchaipaiwong 2 and Duangjai Ochaikul 1, 2 1 Department of Biology, Faculty of Science,
More informationReceived: 08 th Dec-2012 Revised: 15 th Dec-2012 Accepted: 18 th Dec-2012 Research Article
Received: 08 th Dec-2012 Revised: 15 th Dec-2012 Accepted: 18 th Dec-2012 Research Article MODELING AND OPTIMIZATION OF CEPHALOSPORIN C PRODUCTION USING STREPTOMYCES GRESIOLUS Ibrahim, S. Abdelsalam 1
More informationCellulosic and starch-based Raw Materials in Ethanol Production
Cellulosic and starch-based Raw Materials in Ethanol Production 2. European Bioethanol Technology Meeting Detmold (Germany) April 25-26, 2006 Sven Fleischer and Thomas Senn Technology with Education and
More informationINVITRO COMPATIBILITY EVALUATION FOR THE BIOCONVERSION OF DOMESTIC SOLID WASTES BY MIXED CULTURES OF MICRO-ORGANISMS
INVITRO COMPATIBILITY EVALUATION FOR THE BIOCONVERSION OF DOMESTIC SOLID WASTES BY MIXED CULTURES OF MICRO-ORGANISMS Ashwitha Kodaparthi 1, Pavan Kumar Pindi 2, A. Swaroopa Rani 3 1 Department of Microbiology,
More informationPotential of Bioethanol Production and Optimization Test from Agricultural Waste: The Case of Wet Coffee Processing Waste (Pulp)
Potential of Bioethanol Production and Optimization Test from Agricultural Waste: The Case of Wet Coffee Processing Waste (Pulp) Ayele Kefale*, Mesfin Redi**, Araya Asfaw*** *Environmental Science Program,
More informationChemical Process Design / Diseño de Procesos Químicos
Chemical Process Design / Diseño de Procesos Químicos Design Project. DefiniDon of the Design Project Javier R. Viguri Fuente Eva Cifrian Bemposta Department of Chemistry and Process and Resource Engineering
More informationBiofuel production using total sugars from lignocellulosic materials. Diego Alonso Zarrin Fatima Szczepan Bielatowicz Oda Kamilla Eide
Biofuel production using total sugars from lignocellulosic materials Diego Alonso Zarrin Fatima Szczepan Bielatowicz Oda Kamilla Eide scope of the presentation 1. Available lignocellulosic materials 2.
More information